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Computer Networks MCQs

998+ questions with answers

351

Which of the following is not a phase of virtual circuit network?

a Setup phase
b Data transfer phase
c Termination phase
d Teardown phase
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352

Steps required in setup process are ___________

a Setup request and acknowledgement
b Setup request and setup response
c Setup request and setup termination
d Setup and termination steps
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353

During teardown phase, the source, after sending all the frames to destination, sends a _____ to notify termination.

a teardown response
b teardown request
c termination request
d termination response
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354

Delay of the resource allocated on demand during data transfer is ________

a constant
b increases for each packet
c same for each packet
d different for each packet
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355

In virtual circuit network, the number of delay times for setup and teardown respectively are _______

a 1 and 1
b 1 and 2
c 2 and 1
d 2 and 2
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356

In data transfer phase, how many columns does the table contain?

a 1
b 2
c 3
d 4
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357

ATM uses _______________

a asynchronous frequency division multiplexing
b asynchronous time division multiplexing
c asynchronous space division multiplexing
d asynchronous amplitude division multiplexing
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358

ATM standard defines _______ layers.

a 2
b 3
c 4
d 5
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359

ATM can be used for ________

a local area network
b wide area network
c campus area network
d networks covering any range
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360

An ATM cell has the payload field of __________

a 32 bytes
b 48 bytes
c 64 bytes
d 128 bytes
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361

ATM and frame relay are ________

a virtual circuit networks
b datagram networks
c virtual private networks
d virtual public networks
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362

How is Permanent Virtual Circuit (PVC) established?

a It can be established by transporting packets in the sequence in which they were transmitted by the source along the same pa
b It can be established by grouping a number of virtual circuits between two switches into a virtual path
c It can be established when the connection is established for long periods of time and not switched between sessions
d It can be established on a per session basis or on a permanent basis between a pair of end stations that carry large volumes of
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363

A public network is the network that is established by the ___________

a service provider
b network manager
c network agent
d customer
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364

Broadband network management consists of managing the ____________ using ATM technology.

a LAN
b MAN
c WAN
d PAN
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365

The structure of management information is defined using the _________ syntax.

a XML
b ASN.1
c JSON
d Haskell
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366

The _____________ in service has contributed significantly to advances in three network segments of WAN, access network and home/customer premises equipment (CPE) network.

a broadband network
b lowband network
c narrowband network
d highband network
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367

___________ is the interface between a public NMS and a public network.

a M4
b M1
c M2
d M5
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368

Frame Relay is cheaper than other _____

a LANs
b WANs
c MANs
d Multipoint Networks
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369

Frame Relay networks offer an option called _______

a Voice Over For Relay
b Voice Over Fine Relay
c Voice On Frame Relay
d Voice Over Frame Relay
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370

There are ________ total features of Frame Relay.

a Five
b Seven
c Nine
d Ten
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371

Frame Relay does not provide flow or error control, they must be provided by the ______

a Lower Level Protocol
b Highest Level Protocol
c Upper Level Protocol
d Lowest Level Protocol
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372

Frame Relay deploys physical layer carriers such as _______

a ADMs
b UPSR
c BLSR
d SONET
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373

Frame relay provides error detection at the ______

a physical layer
b data link layer
c network layer
d transport layer
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374

Frame relay has only _______

a physical layer
b data link layer
c physical layer and data link layer
d network layer and data link layer
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375

In frame relay networks, extended address is used ________

a to increase the range of data link connection identifiers
b for error detection
c for encryption
d for error recovery
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376

What is FRAD in frame relay network?

a FRAD assembles and disassembles the frames coming from other protocols
b FRAD is used for modulation and demodulation
c FRAD is used for error detection
d FRAD is used for error recovery
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377

What is a Frame Relay?

a It is a set of protocols for data digital data transmission
b It is a network bridge that communicates data bi-directionally
c It is an access device that encapsulates data packets
d It is a Wide Area Network (WAN) Technology that establishes virtual connection
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378

In a Frame Relay network ____________ is a device that converts data packets into frames.

a FRWAN
b VoFR
c FRAD
d FRS
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379

Which of the following can be suited as a definition of an Access List?

a Set of protocols to define traffic in a router
b Set of rules used for packet filtering
c Set of guidelines that every router should follow
d Set of features that every router contains
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380

Which of the following set is used to identify Access Lists?

a Number and name
b Number and special characters
c Names and binary numbers
d Special character and binary numbers
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381

Which of the following aspects can’t be managed by a standard access list?

a Allowing a Network
b Denying a sub-network
c Denying a service
d Allowing a host
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382

Which set of things will be taken into account in order to filter the packets in an extended access list?

a Source IP address and destination IP address
b Source IP address, protocol and port number
c Source IP address
d Source IP address, protocol, port number and destination IP address
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383

What is the range of standard access list, if it is numbered?

a 1 to 99
b 99 to 199
c 1 to 99 or 1300 to 1999
d 99 to 199 or 2000 to 3000
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384

What is the range of numbered extended access list?

a 1 to 99 or 1300 to 1999
b 1 to 99 or 1300 to 2699
c 100 to 199 or 1999 to 2699
d 100 to 199 or 2000 to 2699
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385

Which of the following cannot be an advantage of an access list?

a It furnishes the security
b It helps the network to perform well
c It speeds up the packet transmission
d It manages the traffic over the network
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386

What is the main advantage of Port Access Control List?

a It is implemented on layer 3 devices
b It supports outbound and inbound traffic
c It can have 2 access lists on a layer 2 interface
d It can be configured on Ether-Channel also
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387

A piece of icon or image on a web page associated with another webpage is called ______

a url
b hyperlink
c plugin
d extension
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388

Dynamic web page ______

a is same every time whenever it displays
b generates on demand by a program or a request from browser
c both is same every time whenever it displays and generates on demand by a program or a request from browser
d is different always in a predefined order
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389

What is a web browser?

a a program that can display a web page
b a program used to view html documents
c it enables user to access the resources of internet
d all of the mentioned
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390

Common gateway interface is used to _______

a generate executable files from web content by web server
b generate web pages
c stream videos
d download media files
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391

URL stands for ________

a unique reference label
b uniform reference label
c uniform resource locator
d unique resource locator
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392

Which one of the following is not used to generate dynamic web pages?

a PHP
b ASP.NET
c JSP
d CSS
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393

An alternative to JavaScript on windows platform is _______

a VBScript
b ASP.NET
c JSP
d PHP
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394

What is document object model (DOM)?

a convention for representing and interacting with objects in html documents
b application programming interface
c hierarchy of objects in ASP.NET
d scripting language
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395

AJAX stands for _______

a asynchronous javascript and xml
b advanced JSP and xml
c asynchronous JSP and xml
d advanced javascript and xml
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396

Which of the following is not applicable for IP?

a Error reporting
b Handle addressing conventions
c Datagram format
d Packet handling conventions
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397

Which of the following field in IPv4 datagram is not related to fragmentation?

a Flags
b Offset
c TOS
d Identifier
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398

The TTL field has value 10. How many routers (max) can process this datagram?

a 11
b 5
c 10
d 1
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399

If the value in protocol field is 17, the transport layer protocol used is _____________

a TCP
b UDP
c ICMP
d IGMP
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400

The data field cannot carry which of the following?

a TCP segment
b UDP segment
c ICMP messages
d SMTP messages
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